SYSTEM AND METHOD FOR NEGOTIATION OF MULTI-MEDIA CAPABILITIES ACROSS NETWORKS
First Claim
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1. A telecommunications system for negotiating multi-media capabilities for a call, comprising:
- a media gateway for converting between first and second multi-media capabilities associated with said call; and
a media gateway controller for receiving a call setup message for said call, said call setup message including an attribute indicating said first multi-media capability, said media gateway controller further for receiving a response message including at least said second multi-media capability and selecting said media gateway based on said received first and second multi-media capabilities.
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Abstract
A telecommunications system and method is disclosed for converting between networks for multi-media purposes by adding an attribute to the call control protocol to indicate the multi-media coding of the calling subscriber. This attribute is used to negotiate the multi-media coding between the different nodes involved in a call. Based on the negotiation, various Media Gateways (MG) can be selected to perform the necessary interworking.
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Citations
20 Claims
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1. A telecommunications system for negotiating multi-media capabilities for a call, comprising:
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a media gateway for converting between first and second multi-media capabilities associated with said call; and
a media gateway controller for receiving a call setup message for said call, said call setup message including an attribute indicating said first multi-media capability, said media gateway controller further for receiving a response message including at least said second multi-media capability and selecting said media gateway based on said received first and second multi-media capabilities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for negotiating multi-media capabilities for a call, comprising the steps of:
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receiving a call setup message for said call at a media gateway controller, said call setup message including an attribute indicating a first multi-media capability for said call;
receiving a response message including at least a second multi-media capability for said call at said media gateway controller; and
selecting a media gateway for converting between said first and second multi-media capabilities associated with said call based on said received first and second multi-media capabilities. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification